Unit 3 - Chemical Bonding

Ionic compounds ____ electrons to form compounds.

• share

• transfer

• absorb

• release

• exchange

Tags

NGSS.HS-PS1-2

Covalent compounds ____ electrons to form compounds.

• share

• transfer

• donate

• lose

• gain

Tags

NGSS.HS-PS1-2

Which electrons are involved in bonding?

• Core e-

• Valence e-

• Trick question, it's protons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

The chemical formula of an ionic compound tells you...

• The atoms involved

• The charge of each ion

• The name of the molecule

• The atoms involved and the ratio of the atoms

A molecule can also be described as...

• a covalent compound

• an ionic compound

• a metallic compound

• all of the above

Which of the following is a list of properties of metallic compounds?

• crystal lattice structure, made of ions, high MP

• made of neutral atoms, low MP, can be polar

• sea of electrons, conducts electricity, malleable

What property of metallic compounds explains the rest of its properties?

• electronegativity

• polarity

• sea of electrons

• bond strength

Tags

NGSS.HS-PS1-3

Malleable means

• flatten-able

• pull-able

• break-able

• conduct-able

Ductile means

• flatten-able

• pull-able

• break-able

• conduct-able

Which of the following statements best describes an ionic bond?

• the bonding type present between 2 nonmetal atoms

• a crystal lattice of (+) and (-) charged atoms held by electrostatic forces

• the bonding type present between two metal atoms

• the equal sharing of two electrons between adjacent atoms

Tags

NGSS.HS-PS1-3